Servicing
In the unlikely event of water leaking from the valve body, service kits are
available from your stockist:
1. Thermostatic Sensor, complete
2. Body seal kit
IMPORTANT – DO NOT DISPOSE OF THERMOSTATIC SENSING HEADS IN FIRE.
KV values
Valve body
Kv
Kv
Kvs
Max.
a
type
(1K)
(2K)
(max)
Δ
p
(2K)
EB 15
0.32
0.57
1.01
0.6 bar
0.68
Maximum test pressure:
Bodies with Compression fittings:
20 bar / 294 psi.
Maximum static pressure:
Bodies with Compression fittings:
10 bar / 147 psi at 65°C
6.0 bar / 88 psi at 110°C
Maximum flow temperature: 110°C
Lockshield valve
The lockshield valve is approved to BS 2767-10.
The valve is fitted on the opposite end of the radiator to the TRV and is
solely used by the installer to regulate the flow of water/balance the
system, or to isolate the radiator.
Cleaning care
It is important that these products are only cleaned with a soft, damp cloth.
Do not use bleaches, detergents, abrasive polish etc.
TRV two pipe thermostatic radiator valve
with integral sensor and lockshield valve
Operating instructions
Approved to EN215:
All Drayton Thermostatic Radiator Valves are approved to the new
European Standard EN215, which supersedes BS.6284 1983.
Quality standards:
All Drayton Thermostatic Radiator Valves are manufactured in factories
assessed and certified to BS EN ISO9001.
General description
The Drayton TRV is a self-operating thermostatic radiator valve for
controlling the temperature in a room by regulating the flow of hot water
to a radiator. Operating over a temperature range of 10°C to 27°C it has a
range limiting feature which allows the valve to operate over a restricted
temperature range and a frost protection setting marked *.
Description of operation
The thermostatic sensor reacts to changes in temperature and by varying
the flow of hot water through its associated valve, controls the
temperature in the room.
Installation
Fit the TRV body to the radiator as for a normal radiator valve.
The valve may be fitted with the Sensing Head in either a vertical or
horizontal position. Drayton 15mm angle bodies now come with a reverse
flow feature as standard and can be fitted on the flow or return. The
Lockshield valve is then fitted at the opposite end of the radiator. Two
pipe bodies also have a pre-setting facility.
IMPORTANT: See Data Sheet D34, available on request, before using
the pre-setting device.
Following installation of the TRV4 the heating system should be
thoroughly flushed in accordance with BS7593 code of practice to remove
any traces of mineral oil. Formulations containing Mineral Oil MUST NOT
subsequently be added to the Heating system.
Also available
The Drayton ‘DRAIN EASY’ kit allows easy removal of a radiator valve on
most conventional systems without the need to drain down, loss of
corrosion inhibitor is also avoided.
IMPORTANT: The TRV4 Thermostatic Sensor IS NOT suitable for use
with the TRV3 range of bodies. A conversion head is available: Code No.
07 94 012 TRV4 Sensing Head to suit TRV3 Valve.
Integral TRVs
TRV sensing head can be rotated to suit left or right hand applications.
Drayton
06490029001 Issue
E
NOTE:
Drayton
cannot be held responsible for any injury or damage resulting
from non-compliance with these instructions.
Drayton
continuously seek to
improve products and reserve the right to make changes without notice.
06490029001
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Technical Helpline Tel: 0333 7000 622
Website: www.draytoncontrols.co.uk
401 Southway Drive
Plymouth
PL6 6QT
United Kingdom
